Paper-folding machine.



1 PATENTED DEC. 25, 190 F. e. NIND & F. JUL-YAN. PAPER FOLDING MACHINE.

APPLIOATIOH I ILED MAE.19.1906.

a SHEETS-SHEET 1.

ITO-"839,313. PATENTED DEC. 25, 1,906 I. G. NIND & F. JULYAN. PAPER FOLDING MACHINE. APPLIOATIQN FILED MAR.19.1906. I

. PATENTED DEG. 9.5. 1906.

'E', G. NIND JULY'AN. Y

"PAPER FOLDING MAGHENE.

APPLICATION FILED MAE. 19.1906.

' a SHEETS-SHEET a & m

5 s I Q & W Q N M v u m I w MW NW 1.11

No. 339,313. PATENTED 1330.25, 1903.

' F. G. NIND & F. JULYAN.

PAPER FOLDING MACHINE, APPLICATION PILED MAB. 1911906. I 3

a sums-SHEET 4.

PATENTED DEC. 25, 1906. v F. G. 1mm & F. JULYAN. PAPER FOLDING MACHINE.

APPLIOA TION FILED MAR. 19.1906.

8 snnnrs-snzim 5.

I PATENTED DEC. 25 P. G. NIND & P. JUL YAN. PAPER FOLDING MACHINE.

APPLICATION FILED HAR- 19.1906.

8 SHEETS-3111 MIWHIW E? PATENTEDfDEG. 25, 1906. F. G. NIND & P. JULYAN.

" PAPER FOLDING MACHINE.

APPLICATION FILED MAR.19.1906.

a snnzrs-snnnr a.

Be it known that we,FRED'ERIoK G. N1ND UNITED fs A'rns PATENT OFFICE I FREDERIGK e." NmnAND FREDERICK 'JUiJYAN, or CHICAGO, iL'rlmois, ASSIGNORS To NIND PAPERroLnEspo r Nr; on CHICAGO, }ILLI-' j ora- -.oonroe. irron- F ILLiNOIS.

mess-Follows MACHINE.

" Specification of Letters Patent.

" and FREDERICK J ULYAN, residing at Chicago,

in the county of Cooka'nd State of, Illinois, 'have invented certain new and useful Im provements in. Paper-FoldingMachines, of

which the following is a specification,'.referings.

-ence"being had to the accompanying draw- This invention relates .to machines designed primarily for. folding comparatively small sheets of paper, such as circulars are commonlyiprinted upon. One; of the great I est objections .to machines of this character has been that while I a machine would workperfectly when adjusted for. handling a cer- I tain kind or-grade of paper it could not bedepended upon fordoing perfeet work when another kind or grade of paper was used in connection with it, but would when the kind :of" aper was changed frequently miss taking a sheet from the ile 'or would take-more than a single sheet. gain, it has been found that even when a machine was emplo'yed'eonti'n 4 grade of pa er there would at times be considerable d' cultyencountered in the proper operation-of the machine, owing to .the fact 3 phe'nc con .that the separatesheets would tend to stick various kinds and thicknesses of paper to take from a pile of sheets-a single sheetjand ,only a single sheet-and impart the desired fold thereto.

Other. features of our invention areto provide a new and improved roll for frictionally engaging the sheet of paper to 'befolded, so as to draw it in between such engaging roll and another roll coacting therewith; to provide improved adjustable supports for the pile of, sheets so as to regulate the position of the initial fold that is given to thesheet to pro;

vide improved means for imparting sheet a second fold parallel wit the and to improve generally the construction .and operation of machines oi this character. These objects we acco mplish by the means rineipalobjects of Os s.-

to thest fold,-.

Application filed March 19,1906 Serial Iio. 306,841.

ically described. I

1 Those things that we believeto be newwvill be setforth-in' the claims.

In the drawings, Figure 1* is aside elevarearof the pileof' sheets and showing also a spring for holding the upper end of the pile of elevation, the curved follower plate and someof the'devices at one end of the machine being broken away. Fig. 6 is airont elevation. Fig. 7 is a vertical section taken at line 7 7 ofFi 3, .the drums-and pulleys over which the tapes .pass being shown, howpaper-engaging roll carried thereby, showing them. Fig. 9 is a view of the two rolls shown in Fig; 8, the paper-enga ingrollbeing shown in end elevation and t e, other roll being shown in section, the view alse showing the arrangement of gears through which is driven guide the sheets into position to eraoted llpOIi,f01 receiving a second fold, the drivin being shown in dottedlines. Fig. 1G is a de tail, being a plan View of one of the adjustable supports on which the pfle. of sheets rests on edge, the vertical bar onwhich the support is slidingly mounted being shown section. Fig. 11 is a vertiealsection' at line l1 11 of Fi 10,. 1 Fig. 12 is a' detail, beinga section jat ine 12 12 of Fig. 3 and 'showing'the means near each side of the machine for con. necting the frames carrying the two'foldingpaper-engaging roll and for regulating'the pressure with which such roll is forced suc- .paper. Fig-1411s a; verticalsection at line 14 14 of Fig. 13. Fig. 15 is adetail, partly in vertical section, showing more clearly than :ea wntea Bee.'2 5,1906.

averticals'ection' taken at line 3 3 of Fi. 2;

the upper roll that carries the tapes thatshown inthe drawings andhereinafter 1 '65 upper end of the curved follower-plate in sheets. curved backward. Fig.'5"is a'rear .7 ever, in elevation- Fig. 8 is a detail, bein a front elevation of the rocking frame and t e also v thefiined roll that cooperates with the first-mentioned roll to impart the initial fold I H tothe sheets that successively pass 'between uously upon practically; the same kinduor.

pulley that is secured on the end of the r0 1 8 that cooperates with the paper-e11gagi11g roll devices. Fig. 13 is a detail, illustrating the devices for rocking the frame that carries the 10o cessively, against" the different sheets of in Fig. 13 the meansforl re ulatin'g the degree of pressure with which t e paper-engagfing roll is forced against'the sheets of paper. F1g. 16-is a horizontal section taken at. line cates supporting-standards, a pairof such being provided at opposite sides of the machine, to which is suitably secured by bolting \or otherwise the main frame, consisting of two longitudinally-extending side bars 21 and a cross-bar 22 at the forward ends of the side bars 21. We prefer to make these bars 21 22 integral, but they of course may be vformed separately and suitably united.

Formed with the frame 21 22 are two downwardly-extending brackets 23, against the vertical outer faces of which is adapted to be placed a supplemental frame carrying the devices that impart the second fold to the sheets of paper, which last-named devices will hereinafter be more specifically described. I

24 indicates vertical bars secured near their upper ends to the rear face of the crossbar 22 by screws, as indicated in dotted lines in Fig. 3, or otherwise. As shown in said Fig. 3, washers are interposed between the bars 24 and the cross-bars 22, so as to bring the rear face of each bar 24 in line with the 'rear side of the small one of the folding-rolls, that will be hereinafterdescribed. 25' indicates, horizontal supports that at their forward ends are provided with guiding-grooves that partially embrace these vertical bars 24, this construction permitting the supports to move freelynp and. down on the bars 24. They are held in any desired position on the bars 24 by means of a set-screw 26, with which each support is provided, said setscrew screwing into an enlarged head 27, depending from the forward end. of the support, and said set-screw near its outer end being supported by a dependingbracket 28. obvious that upon turning the set-screw 26 its end will impinge against the face of the bar 24 with which its support is connected. These vertical bars 24 in addition to forming guides upon which the supports 25 canbe adjusted form also bearing-strips against which the front of the pile ofsheets sup ort ed on the parts 25. will come, and as the aces of these bars or strips 24 are of polished metal the sheets of paper when drawn between the folding-rolls, hereinafter de scribed, will move upward against such bars clearly shown in Figs. 1 and 3. I cal portion of the follower-plate are wide It is.

through which pass guide-rods 32, that are each secured at its forward end to a raised screws orotherwise to the front face of the cross-head 30, such follower-plate extending in a vertical direction downward from such cross-head, but above such cross-head being curved or bent to project rearwardly, as

In the vertislots 36, (see Fig. 5,) through which the supports 25 for the pile of sheets of paper project.

37 37 indicate two rack-bars, each suitably secured to one of the side bars 29 of the sliding frame that carries the follower-plate, which rack-bars in the construction shown lie below the lower edges of the side bars 29 and project slightly in rear of said side bars. In the construction shown these rack-bars are each secured in place by screws 38 and 39, the screw 38 passing through a vertical ear 40 and into the inner face of the side bar and the screw 39 passing through a horizontal car 41 into a projection 42, cast with the side bar. i

43 indicates a pair of coiled springs, each secured at its forward end to the forward one of the pair of uprights 20 and extending therefrom to the rear in a diagonal direction and connected to a rod 44, which rod is adapted to be placed in any one of the notches in the parallel rack-bars 37. this means the tension of the springs can be adjusted as required by shifting the rod 44 into any one ofthe several notches rovided, and the movable frame 29 30, wit 1 the follower-plate secured thereto, will be forced forward withthe required degree of ressure to present the pile of sheets carrie on the supports 25 against the bars or strips 24 and -the fixed folding-roll, hereinbei'ore referred to, which projects over the ends of such bars or strips. The pile of sheets of paper shown .in the drawings is indicated by 45.

The upper-portion of the follower-plate 35 is shown as being bent to incline it to the rear, as has already been mentioned, and this is for the purpose of permitting the upper portion of the pile of sheets to be correspondingly inclined backward, so as to insure such pile being-out of contact with the rocking paper-engaging roll, except at regular inter-- vals, when such roll is rocked forward against the pile. In order that the pile of sheets may be so held backward, we provide a suitable spring 46, which is secured to the upper end of the follower-plate and is bent over and bears upon the top of the pile of sheets, thus holding the upper end of the pile of sheets at the desired angle and gainst the follower-plate; but the pressure of the spring o touchingthose bars or strips 24 the rigid ment of the pinion 57 with the gear 56 that is fast on the shaft 53, that. carries such roll 54. Through the remaining-gears and pinions described the cam 64-Will,.of.course,-

also be rotated and as it turns it will lift the free end of the arm 58, causin a turning of,

theshort rock-shaft '65, to whic' such arm is affixed, and such movement of the rockshaft will force forward the downwardlysdepending arm 67, which, bearing against the rigid finger 70', that is carried by'th'e PlOjG'O? tlon 71 on the bar 48, vcauses such bar torock, the rocking bein permitted by reason of suchbar being loose y mounted by its ears 49 on the smooth roll 47, as before explained. This rocking of the bar 48-carries the paperengaging roll-54 backward and brings'itin contact with the outermost sheet of the pile of sheets. The rocking of this roll 54 does not disengage'the gear 56, carried -'on thev same shaft, from the inion 57-, and consequently the roll is at a1 times being rotated-Q The effect of the rotating roll upon the sheet of paper that it comes in contact with is to draw down the upper part. of the sheet, causing it to buckle opposite thebite of the two rolls, and consequently to be caught between the two rolls and be drawn between them, thus imparting to the sheet of paper the desired fold in the well-known manner. Be-

fore the sheet has passed entirely between the rolls the cam 64 will have been turned out of engagement with the arm 58, thus allowing the free end of such arm to drop, and inasmuch as the pivotal connection of the rocking bar 48 is considerably in the rear of the longitudinal center ofv such bar the weight of the bar will cause it to swing downward and forward, thus of course carrying the paper-engaging roll '54 sli htly forwaragain, so that it will be entir y clear of the pile of sheets when the sheet being operated finger coming in contact with the end of such set-screw 69 will act as such stop. This set-screw 69 is provided for re a'ting the degree of pressure with which '0 e paper-engaging roll 54 shall be brought against the a pile of sheets, and by its use suchroll can be caused to bear with very great or very little s force against the pile, which adjustment is of very considerable value, "that it permitsrof a very ready adjustnienthiid of a ver fine adjustment to accommodate the machme to papers of different thicknesses or-graidesand also to work with equal facility at different times upon the seine kind or grade of paper J The ex- T wa i .under different atmospheric -conditions that aiject the separation ofja single sheet fremxa p e. t 5

After a sheet of paper has been folded by passing between the two rolls 47 and 54, as escribed, it is given an additional fold parallelwith the fold (inst imparted to it, and such additional fol is 'given bythe devices nowto bedescrib'edv 72 indicates a shaft provided in the cons'tmctionishownwith-two drums 73, over which pass ta es 74. This shaft 72 is suitably journals in the forwardly-extending brackets 2 This shaft 72 is extended outside bf the Ihainfra'meat one end, and upon 'suche'nd is affixed a pinion 7 5, with which meshes an idler '76, thatis driven from a pinion] 7 ,faston' the shaft47 between the main frame-and thehub of the driving wheel or pulley; "(See: Fig. 2.)

78 indicates aheavy rod depending from the cross-bar 22 of the main frame, to which cross bar it is. suitably afiixed. Secured 4 upon this heavy: bar 78 near its lower end, is ,a socket-piece -79;- that has formed with it on its forward side a: sleeve 80, in which is securely affixed asmall rod 81,"paral1el with the shaft 72 but the construction shown located somewhat in rear of said shaft '72.

(See Fi 3;) (Upon-this rod 81 are j ournaled two ul eys 82, over which the tapes 74 pass.

A (see Fig. 5}) the socketiece 79,

thatcarries-thesleeve80, in which t e rod'8] is secured; is'rnade adjustable, by-rneans of a upland down on the rod 78, by

set-screw 83, I

e tap'es can be tightened as evices fits up againstthe forward endsof the brackets 23, from which brackets project, screws 87 ,which pass through suitable openings in the side bars-84, and upon the outer ends of which are screwed thumb-nuts 88, which in the construction shown bear against elongated washers 89,;interposed between the thumb-nuts and the outer faces of the side bars 84. I

90 indicates arock-sha'ft suitably j ourn'a'led in eyes 91;,formed' in the lowerends of two heavy rods 92, that are; secured to the'lowcr ends of the side bar 84and which, in effect, formextensions (if such sidebar. In'the construction shownzthesegheavy rods 92 enter sockets fonnedin the lower ends of the said side bars 84 and are adjus'tably held'therein by set-screws 93. (See 1.) 94 ind1- cateseipla-te carried by sea "rock-shaft 90,

their rear (See Figs.- 2 and 3;) This supporting-frame-that carries the second foldi g the attachment to such frock shaft being in 7 means of two small bars 95, which are rigidl'ysecuied attheir lower ends 'to such rockshaft, and to which bars the plate 94 is secured by screws .96 orotherwiser One end ofthe shaft 90- projects at one side of the ma chine and has rigidly secured-thereto one end of an arm 97, the upper endof said arm projecting slightly to the rear and engaging with a cam 98, loosely-mounted onthepin 63, on which thelother'ca n 64 is also mounted. This cam 98 has a'hub portion 99, secured to the I face of the cam 64, so that both of said cams turn together on-said pin 63. greater portion, of the surface of this cam 98 is concentricwith the pin 63,.and the size of the cam 98' is such'that during the time that the upper end of thearm 97 is in contact with this concentric portion the arm will hold the rock-shaft turned to drawback the plate 94' to theposition indicated in.Fig.-3 but immediately u'pon the cain'turning, so as to cause the end of the said arm 97 toleave the concentric portion of the cam, the rock-shaft 90 'Will be turned and'force the plate 94 to the forward limit of itsmotion, thisturningof the roclg-shaft at'this time being accomplished' bymeans of a coiled spring 100, that is'sscured at its lower end to the outer end of a short projecting pin 101, secured .to such" rock-shaft,-the other end' of' the spring being suitably securedto oneoftheside bars84, as clearly shown in :Fig. 3. Inorder to permit of the backward turning of the plate'94, as .shown in Fig; 3,-without interfering with the tapes 74, the plate is provided with wide slots 102. (See Figs. 6'and 7.)

103 and suitably secured upon shafts-105 and 106,

respectively, which are journaled in suitable bearings-.107 and 108, secured upon the outer facesofthe side bars'84o I v 109 indicates an idler-pinion journaled upon a pin 110 that'projects from one ofthe driven inopposite directions. 113 113 indicate a pair of light. spring side bars 84 and-meshes with the, ear 59.'

This idler 109 also meshes with a pinion 111-, fast on the shaft 105 that in turn meshes with a inion- 112, fast on the "shaft 106, andthroug this arrangement of gearing the second pair of 'folding 'rolls 103 and fingers attached to the upper cross-bar 85 and act to aid .defiectinga' folded sheet.- vthat "passes from between the rolls 47 and 54 down behind the second pair of folding-rolls As shown, the.

104 indicate a pair of folding-rolls 104-are plate 94, the attachment hearthe end of each rm -L0 the rear face of the plate 94' is placed-areinforcing-block i 118, '\(see Fig. 16,) into which the set-screws arms forwardly-projecting pins 1-17 are pro vided on which the sheet of paper to be given its second fold by the pair of rolls 103 and 104 rests. By means of the set-screws 116 pins 117 are attached can be adjusted up or down, as re uired, "so as to have the paper come to rest on such pins to bring the de- --11 6 can pass. At. the opposite'ends of the .theouter ends 'of-thef arms'to which the said sired portion of the paper oppositethe said second pair of folding-rolls.

. The operation-of the devices for imparting the second told is as follows: A sheet of-paper' .folded by the first pair of folding-rolls 47 and Y 54 will have its leading edge turned (iOWl1-" ward by the light.- spring-fingers 113, andthe action of the moving -tapes74 insures the sheet being evenly .carriedl down. At-the time such sheet is" being so carried down the action of the cam 98jon-the arm 97 will cause the plate carried by the rock-shaft to be held back against theaction of the coiled sjfing l00in the position shown in Fig. 3., T

e plate"therefore offers no obstruction whatever to the downward passage of the paper, and such paper will pass freely down untilitfrests upon thepins 1'17, carried by the adjustable arms 115.- Thereafter when the cam 98 has been turned-far-enough to allow the free end ofthe ar'mj97to pass off fromthe concentric portion of such cam the action of thecoiled sprin willimme-" diately cause the rock-sha 90 toturn and swing the plate 94 forward andagainstthe sheet of paper.-' "It will be noted that the upper end of thisplate 94 is turned so that.

its upper edge-comes opposite the point "of contact of the two folding-rollers; 103 and 10,4 and such'edge of course" buckles the sheet, of paperinward, so that it iscaught 'Ioo L between such rolls and will by the turn ng action of such "rolls be drawn between them,

and thus be given its second fold, which sec.v 0nd told,- as before stated, is parallel with the initial fold given to the sheet by the first,

pair of folding-rolls. I

By properly adjusting the'supports .25, on which the pile of sheets is first aced, and by parted to a sheet can be produced at equal distances from the ends of the sheet, thereby adapting .the sheet for ready insertion inan 'ordinar'y long envelop.that is adapted to take sheets'of, letter size'folded twice upon themselves; It is'also evident that. thesupalsoproperly .adjustin the supporting arms- 115, uponwhichlthe s e'ets are successively su ported prior "to receiving their second .fo d, it will be evident that the two folds importing-parts referred to can bebso adjusted as'to insure the sheet of paper centrally in the first instance and then next be folded again, upon its center, so as to proeing folded duce four thicknesses of paper adapted for insertion in an envelop of the size referred to.

It is desirable in machines of this charac' terthat impart folds such as above described to have means provided for accurately-creasing such folded sheets along a line at exactly right angles to the folds imparted, wherebyan additional fold in an opposite direction may be given by hand to the folded sheets to adapt them for insertion in an ordinary small envelop orv for other purposes. Furthermore, inasmuch as various sizes of sheets of paper are adapted'to be folded in our ma-' is journaled a shaft 121, providedat one end with a gear 122, fast thereon, with which gear '2 meshes an idler 123, that also meshes with the pinion 112 on the shaft 106, so that as said shaft 106 turns the shaft 121 turns in the same direction. Upon this shaft is slidingly secured, by means of a set-screw 124 passing 0 through its hub, adisk-125, having a groove in its periphery, the upper art of such disk being just below the bite of t e second pair of folding-rolls103 104.

1"26 -i'ndicates a sharp-edged creasing-wheel 55 mounted in l the construction shown in a forked arm 127, that is slidingly mounted on a rod 128, extending across the front of the "machine just above the upper folding-roll 103, said rod being sup orted in suitable 4o brackets 129, secured to t e outer face of the upper cross-bar 85.

130 indicates a flat spring secured by a screw in the construction shown to the upper edge of the .upper cross-bar 85 and. bearing at 4 5 its other end against the forked arm, to which it is sec'ured in any suitable manner. The creasing-wheel 126 rests in the groove of the disk 125 and is held pressed a ainst said disk by the said spring 130. As shown, (see Fig.

2,) the upper edge of the crossbar 85 is provided with a number of holes, into any one of which the screw which holds the spring 130 can be inserted, and as this spring is moved from one point to another the creasing-wheel arm 127 will. freely slide along the rod 128,

upon which it is pivotally mounted. The adjustmentiof the coacting grooved disk can be effected by loosening its set-screw 124, as is apparent. I

By our invention we provide a machine capable of imparting a plurality of parallel folds to sheets of paper of varyin size and of different thicknesses, and to w ich paper after being so folded can be im arted a crease wherever desired at right ang es to such folds.

What we claim as our invention, and desire to secure by Letters Patent, is

1L In a aper-folding machine, the combination wit means for supporting a pile of sheets, of folding mechanism comprising a roll and a second member adapted to cooperate therewith to produce a fold, means for rotating said roll, and means for intermittently pressing said roll a ainst said pile of sheets.

2.- In a aper-foIding machine, the combination wit means for supporting a pile of sheets, of a pair of folding-rolls, means for intermittently moving oneof said rolls toward and against said pile of sheets, and means for rotating said last-named roll,

3. In a aper-folding machine, the com bination wit means for supporting a pile of sheets, of a pair of folding-rolls, means for intermittently moving one of said rolls toward and against said pile of sheets, and means for continuously rotating both of said rolls.

4. In a paper-folding machine, the combination with means for supporting a pile of sheets, of a pair of folding-rolls, means for moving one of said rolls against the'pile of sheets and, holding it in that position until the outer sheet of the pile has been caught and partly passed between said rolls and then moving it and said single sheet away from said pile, and means for rotating said roll.

5. In a paper-folding machine, the combination with means for supporting a pile of sheets, of a pair of folding-rolls, one of said rolls being pivotally connected with the other so as to permit of its being rocked, means for rocking said pivoted roll toward and away from said pile of sheets, and means for rotating it While in both of said positions.

6.-In a paper-folding machine, the combination with means for supporting a pile of sheets, of a pair of folding-rolls, one of said rolls being pivotally connected with the other so as to permit of its being rocked, means for rocking said pivoted roll toward and away from said pile of sheets, and means for rotating both of said rolls during the rocking of said pivoted roll.

7. In a paper-folding machine, the com bination with means for supporting a pile of sheets, of a smooth roll journaled in fixed bearings and in contact with a pile of sheets carried by said supporting means, a second I roll adapted to frictionally engage the outer sheet of the pile and cause it to be drawn between said two rolls, means for h lding said last-named roll in engagement wit 1 said pile for a'limited time and then be-moved away from said pile, and means for rotating said engaging roll in its different positions.

8. In a paper-folding machine, the combination with means for supporting a pile of sheets, of folding mechanism comprising a I roll and a second member adapted to cooperate therewith, of a rocking bar in which sald roll is j ournaled, means for'rocking s'aid ,barlto movesaid roll against and away from;

- 'said:pile of sheets, andmeans' for rotating bination' with means for supporting a pile of sheets, of a pair oi-folding-rolla a rocking bar in which one'of said rolls is 'journale'd','

other on'elof said rolls, means for rocking said" bar to move the roll carriedthereby against and away from said pile of sheets, and means for rotating said roll in its difierentfpositi ons.

yrs

10. "In a ,paper f olding machine, the com- ,bination with means for supporting a pilefl of sheets,- of a pair of folding-rolls, a rocking bar -in W'hieh one of. said rolls is 'journaled, means for rocking said bar to'moye' the roll carried therebyagainst and away from said pile of'sheets'," and intermeshing gears connected' with said rolls for. driving-them in v opposite directions. i

sheets roll and a second member. a

'11. In a paper-folding machine, the coin-j bination with means for supporting'a pilev of sheets, "of folding" mechanism comprising a 'dapted'to cooperate:therewith to produce a fold, means-for .rotatingsaid roll, means for-intermittently pressing said roll against. said 'pileof sheets, and means for yaryi ng the pressure 'of'Fsaid roll against'said pile'of sheets. P'

12. Ina paper-folding machine, the cominatin with means for supportingapile of of folding mechanism comprising a roll and asecond member'adapted to cooperate therewithto producea ,fold, a rocking bar inwhich said roll isjournaled, means for rotating said rollymeans for intermittently pressing said roll against 'saidpile of sheets,

ing movement of said bar, 13. Ina paperajolding machine, the-con bination with means for supporting a pile ofsheets,v of folding mechanism comprisinga .roll'and asecond member ada Itedto coap r-f ate therewith toproduce a old, a rocking] bar in which said roll is journaled; an arm sheets, of folding ate therewith, to produce fa on said bar, arock-shaft,- means connected with said rock-shaft for engaging said arm to cause a rocking movement to said bar, and

'bination with means for supporting a nea roll and'a second member ada ted to eodperold arocking 3 1 bar in which said roll is journaled; an arm on said bar, a rock-shaft, an adjustable device ,o nnected with said roek shaft for engaging ,fsald arm, and means-for aetuating said rockshaft.

sheets, or folding 5 rock-shafth said'rQcking bar beingsupported from the 'me'ans for rotating the r), of ineans'fersu porting a pile'iol'- sheets onf edge apposite,said rolls, and a answer-pla adapted to bear mechanism eompr sing-pa.

rollfand a second member adapted to 006perate therewith to produce a; fold; a rocking.

ing arm sedured; to the rock-shaft, a screw passing through said last-mentioned arm and 'ada tedto come in contact with the arm on J 7 Sai rocking-bar, and means for actuating said l 16. In a-paper-foldinglmachineithe'com- -.bin ation with means for supporting a pile of. sheets, offoldin'gmechanism comprisingarellj' and a second member ada ted to cooperate" therewitligto roducea fol a rocking'bar in whichsaid re 1 is -journaled,'said rocking bar beingpivjoted'sii; one side of its longitudinal center; means for'rotating said roll, and means for 'intermittentlyrocking said bar and therollcarried therebyto bringsaid roll 7 against the pile of 'sheets' a 17. Inapaper-folding machine, the com-'1 bination with means for su said pileof; sheets and the other of. rolls being mo mted in-mcvable' bearingsjmeans 5 v Portinga pile of f 1" sheets, apair of folding-rel s,'one"of said'rolls i being mounted in stationarybearings and adaptedto lie in constant engagement'with holding'the upper portions of "the sheets'of i l-the-pile inclined away from the movable rell P e e a d-r6 n n i h l e i hB ep enlre k d g inst a pile: fjf I 18. 'machine,"t lie,eqm-

bination'" with a1;--pair 'of ftlding nine; and a against'the rear the pile cf sheets, said folp j lower-pl ate liajving i'ts lower portion sub'stanand means for regulating the amount of rockq away from said'fc lding rcllst "1 9. In-Ia'paper-fclding machine; the coml) il1&tl0 I1 W1th" a pairf of fol'ding rolls' and "meansifor'rotating them of means for supporting a pilefof sheetson edge opposite said rolls, a Ifolldwer plate adapted to bear. against'the rear'o f the'pilc 'cf sheets; said -fol lower-platQhB Ving itsjlower portion substan-"- away ;from' said "iolding' rells, and means for I holding the upp'erl lportio 'n-of' the .tially vertical'jand itslupp'er portion inclined inmpse'ia g" ma hin e @1- I bi-nationwitha supporting-frame, of a pair of folding rolls, ayertical bar or strip secured to the frame beneath saidlrolls, a suppc-rt for .Qthe sheets tobe folded adjustably connected tothe said. baron-strip, a follower-platev I adapted to be, placed in rear of the slieets to be folded, said follower-platebeingslotted'to permit the said support to project through it,

and means carried by the said frame for adju'stabl supporting said followereplate. v 21. Illa paper-folding maehine thecombination with a supporting-frame, of a pair the rolls.

offolding-rolls, a vertical bar or strip secured to the frame beneath said rolls, a support for the sheets to be folded adjustably connected to the said bar or strip, a follower-plate adapted to be laced in rear of the sheets to be folded, said ollower-plate being slotted to permit the said support to project through it, means carried by the said frame for adjustably supporting said follower-plate, and a spring for holding saidfollOwer-plate against the sheets. v

22. In a paper-folding machine, the combination with a supporting-frame, of a pair of folding-rolls, means for supprrting a pile of sheets on edge opposite said rolls, a sliding frame comprising two side bars and a crosshead at the forward ends of said arms, a fol' lower-plate secured to said sliding frame, guides on the supporting-frame for said sliding frame, and a spring connected to said sliding frame and said supporting-frame to keep the follower-plate against the pile of papers.

23. In a paper-folding machine,- the combination with a supporting-frame, of a pair of folding-rolls, means for supporting a pile of sheets on edge opposite said rolls, a sliding frame comprising two side bars and a crosshead at the forward ends of said arms, a follower-plate secured to said sliding frame, guides on the supporting-frame for said sliding frame, rack-bars on the said side bars, coiled springs connected at' their forward ends to the supporting-frame, and a rod adapted to be engaged'by said rack-bars, said springs being connected at their rear ends to said rod.

'24. In a paper-folding machine, the combination with a rocking plate, of a pair of foldingrolls, a support carried by the plate for the sheet of paper to be folded, means for feeding the sheetbetween said plate and rolls, and means for rocking said plateto prplss said sheet against and between the ro s.

25. In a paper-folding machine, the combination with a rocking plate, of a pair of folding-rolls, anadjustable support carried by the plate for the sheet of paper to be folded, means for feeding the sheet between said plateand rolls, and means for rocking said plate to press said sheet against and between 26. In a paper-folding machine, the combination with a rocking plate, of a pair of folding-rolls, an adjustable support carried by the plate for the sheet of paper-t0 he folded, said support, consisting of a pivoted arm carrying a projectingp1n,'1neans for feedin the sheet between saidfplat'e"and rolls, an means for rocking said'pla'te to press said sheet against and between the rolls.

27. In a paper-folding machine, the combination with a supporting-frame and a pair of folding-rolls journaled therein, of two rods depending from the said frame and adjustable vertically, said rods having openings-in openings, a plate attached at its lower end to said rock-shaft, means for feeding a sheet of paper .between said plate and pair of rolls,

cause said plate to press the sheet against the rolls. v

28. In a paper-folding machine, the combination with a supporting-frame and a pair of folding-rolls, of a rock-shaft journaled ,in suitable supports, a plate attached to said rock-shaft, an endless tape for guiding a sheet of paper between said plate and rolls, said plate being slotted to prevent interference with the" tape when said plate is turned back, means for moving said tape, and means for turning said rock-shaft to cause said plate to press the sheet against the rolls.

29. In a paper-folding machine, the combination with a supporting-frame and a pair of folding-rolls, of a rock-shaft j ournaled in suitable supports, a plate attached to said rock-shaft, an endless tape for guiding a sheet of paper between said plate and rolls, a rotatableshaft located over said plate, a

passes, a rod parallel with said shaft and ocated below it .over which the tape also passes, and means for turning the said rockshaft to cause the plate carried thereby to press the sheet against the said folding-rolls.

30. In a paper-folding machine, the combination with a supporting-frame and a pair of folding-rolls, of a rock-shaft journaled in suitable supports, a plate attached to said rock-shaft, an endless tape for guiding a sheet of paper between said plate and rolls, a rotatable shaft located over said plate, a drum on said shaft over which said tape passes, a rod parallel with said shaft and located below it over which said tape also passes, means for vertically adjusting said rod, and means for turning said rock-shaft to 'cause the plate carriedthereby to press the sheet against the said folding-rolls,

FREDERICK G. NIND. FREDERICK JULYAN. Witnesses:

ALBERT H. ADAMS, WILLIAM H. DE BUsK. 7

their lower ends, a rock-shaft held in said and means for turning said rock-shaft to drumon said shaft over which said ta e 

